What is 'rollback' command in perl?
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How to convert arrays into a string in perl?
What is a perl references?
How to access parameters passed to a subroutine in perl?
If you want to empty an array then how would you do that?
How can I implement the function overloading in Perl ? I read about the operator overloading, I do not know how to implement the function overloading. Thanks in advance ?
package MYCALC; use Exporter; our @EXPORT = (); our @ISA = qw(Exporter); our @EXPORT_OK = qw(addition multi); our %EXPORT_TAGS = (DEFAULT => [qw(&addition)],Both => [qw(&addition & +multi)]); sub addition { return $_[0] + $_[1]; } sub multi { return $_[0] * $_[1]; } 1; Program: use strict; use warnings; my @list = qw (2 2); use Module qw(:DEFAULT); print addition(@list),"\n"; Above coding is my module MYCALC and the program which using this module, I have not exported any function using @EXPORT, but I have used the DEFAULT in %EXPORT_TAGS with the function addition, when I call this function from the main it says the error as,
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Demonstrate subroutines in perl with a simple example.
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